Build errors on Debian 9 .. solved it though

[dooferorg]

I did have some problems in getting the dependencies to work, but I figured it out and wanted to pass along what I did.

I was getting build errors for the 'cryptography' module. Upon finding this link: https://cryptography.io/en/latest/installation/#building-cryptography-on-linux .. I went ahead and tried updating the packages as indicated (apt-get install build-essential libssl-dev libffi-dev python3-dev) but it didn't help. What DID help was doing 'pip install cryptography --no-binary cryptography'

I then went through each line of 'requirements.txt' and issued separate 'pip install ' (with no version number) and they installed ok.

I was then able to run the vimeo-downloader.py as expected and it works fine.

Just wanted to pass that along in case anyone happens across the same issues I had.